ns13.starlink.ua has no NS records.
NS records for this zone are defined at starlink.ua.
NS records for this zone are defined at starlink.ua.
Question and response
Question
dig ns13.starlink.ua. NS
Answer
The response has no answer records.
Authority
starlink.ua. 1800 SOA carl.ns.cloudflare.com. dns.cloudflare.com. 2399497210 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0